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| --------------
START TRANSACTION
--------------
--------------
set session collation_connection = "latin1_general_ci"
--------------
--------------
DROP DATABASE IF EXISTS `base`
--------------
--------------
CREATE DATABASE IF NOT EXISTS `base`
DEFAULT CHARACTER SET `latin1`
DEFAULT COLLATE `latin1_general_ci`
--------------
--------------
DROP TABLE IF EXISTS `fille`
--------------
--------------
CREATE TABLE `fille`
( `id` integer unsigned NOT NULL auto_increment primary key,
`pays` varchar(255) NOT NULL
) ENGINE=InnoDB
DEFAULT CHARSET=`latin1` COLLATE=`latin1_general_ci`
ROW_FORMAT=COMPRESSED
--------------
--------------
INSERT INTO `fille` (`pays`) VALUES
('[fr_fr]'),
('[en_us]'),
('[de_de]')
--------------
--------------
select * from `fille`
--------------
+----+---------+
| id | pays |
+----+---------+
| 1 | [fr_fr] |
| 2 | [en_us] |
| 3 | [de_de] |
+----+---------+
--------------
DROP TABLE IF EXISTS `mere`
--------------
--------------
CREATE TABLE `mere`
( `id` integer unsigned NOT NULL auto_increment primary key,
`lib` varchar(255) NOT NULL
) ENGINE=InnoDB
DEFAULT CHARSET=`latin1` COLLATE=`latin1_general_ci`
ROW_FORMAT=COMPRESSED
--------------
--------------
INSERT INTO `mere` (`lib`) VALUES
('Un'),('Deux'),('Trois')
--------------
--------------
select * from `mere`
--------------
+----+-------+
| id | lib |
+----+-------+
| 1 | Un |
| 2 | Deux |
| 3 | Trois |
+----+-------+
--------------
DROP TABLE IF EXISTS `assoc`
--------------
--------------
CREATE TABLE `assoc`
( `id` integer unsigned NOT NULL auto_increment primary key,
`clef_mere` integer unsigned NOT NULL,
`clef_fille` integer unsigned NOT NULL
) ENGINE=InnoDB
DEFAULT CHARSET=`latin1` COLLATE=`latin1_general_ci`
ROW_FORMAT=COMPRESSED
--------------
--------------
INSERT INTO `assoc` (`clef_mere`,`clef_fille`) VALUES
(1,1),(1,2),(2,3),(3,2),(3,3)
--------------
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select * from `assoc`
--------------
+----+-----------+------------+
| id | clef_mere | clef_fille |
+----+-----------+------------+
| 1 | 1 | 1 |
| 2 | 1 | 2 |
| 3 | 2 | 3 |
| 4 | 3 | 2 |
| 5 | 3 | 3 |
+----+-----------+------------+
--------------
SELECT *
FROM `assoc` as t1
INNER JOIN `fille` as t2
ON t2.id = t1.clef_fille
INNER JOIN `mere` as t3
ON t3.id = t1.clef_mere
WHERE t2.pays = '[en_us]'
--------------
+----+-----------+------------+----+---------+----+-------+
| id | clef_mere | clef_fille | id | pays | id | lib |
+----+-----------+------------+----+---------+----+-------+
| 2 | 1 | 2 | 2 | [en_us] | 1 | Un |
| 4 | 3 | 2 | 2 | [en_us] | 3 | Trois |
+----+-----------+------------+----+---------+----+-------+
--------------
COMMIT
--------------
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